Find probability that there are exactly 2 prescriptions

Assignment Help Applied Statistics

Reference no: EM13324888

1. In a small pharmacy, suppose there is an average of 2 prescriptions of a certain drug per week. Use Poisson tables to answer the following.

a. Find the probability that there are exactly 2 prescriptions for this drug in a given week.

b. Find the probability that there are no more than 5 prescriptions for this drug in a given week.

c. Find the probability that there is at least 1 prescription for this drug in a given week.

d. Suppose we observe 7 prescriptions for this drug in a given week. Would you consider this an unusually high number? Calculate a probability to justify your answer.

2. Let Z represent a standard Normal random variable.

a. Find P( Z < 1.96 )

b. Find P( Z < -3.03 )

c. Find P( Z > 0.67 )

d. Find P( -1.37 < Z < 2.60 )

e. P(Z <10)

f. Find the point C such that P( Z < C ) = .2

g. Find the point C such that P( Z > C ) = .33

Reference no: EM13324888

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